Optimization Of Bioethanol Distillation Process Evaluation Of Different Configurations Of The Fermentation Process

Process simulation was used to analyze bioethanol distillation process, which requires a large amount of thermal energy. As it is shown in this study, in the ethanol production process the fermentation stage has a significant impact on energy consumption in the purification step. Thus, alternative configurations in the fermentation and distillation processes were proposed and evaluated. The results showed that vacuum extractive fermentation coupled with triple effect distillation presented the lowest energy demand among the studied configurations. © 2009 Elsevier B.V. All rights reserved.27C18931898D.I.P. Atala, 2004, PhD Thesis, School of Food Engineering, State University of Campinas, 2004Balat, M., Balat, H., Öz, C., Progress in bioethanol processing (2008) Progress in Energy and Combustion Science, 34, pp. 551-573Bui, S., Verykios, X., Mutharasan, R., Situ removal of ethanol from fermentation broths. 1. Selective adsorption characteristics (1985) Ind. Eng. Chem. Process Des. Dev, 24 (4), pp. 1209-1213Franceschin, G., Zamboni, A., Bezzo, F., Bertucco, A., Ethanol from com: A technical and economical assessment based on different scenarios (2008) Chemical Engineering Research and Design, 86, pp. 488-498Macedo, I.C., Seabra, J.E.A., Silva, J.E.A.R., Green house gases emissions in the production and use of ethanol from sugarcane (2008) Biomass and Bioenergy, 32 (7), pp. 582-595. , Brazil: The 2005/2006 averages and a prediction for 2020Silva, F.L.H., Rodrigues, M.I., Maugeri, F., Dynamic modelling, simulation and optimization of an extractive continuous alcoholic fermentation process (1999) J Chem. Tech Biotech, 74, pp. 176-182Sobocan, G., Glavic, P., Optimization of ethanol fermentation process design (2000) Applied Thermal Engineering, 20 (6), pp. 529-543. , DOI 10.1016/S1359-4311(99)00042-